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Proceedings Paper

Performance of wavefront sensors in strong scintillation
Author(s): Jeffrey D. Barchers; David L. Fried; Donald J. Link; Glenn A. Tyler; William Moretti; Terry J. Brennan; Robert Q. Fugate
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Paper Abstract

The estimation accuracy of wavefront sensors in strong scintillation is examined. Wave optical simulation is used to characterize the performance of several wavefront sensors in the absence of measurement noise. The estimation accuracy of a Schack-Hartmann sensor is shown to be poor in strong scintillation due primarily to the presence of branch points in the phase function. The estimation accuracy of a unit-shear, shearing interferometer is found to be significantly better than that of a Hartmann sensor in strong scintillation. The estimation accuracy of a phase shifting point diffraction interferometer is shown to be invariant with scintillation.

Paper Details

Date Published: 7 February 2003
PDF: 11 pages
Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); doi: 10.1117/12.457126
Show Author Affiliations
Jeffrey D. Barchers, Science Applications International Corp./Air Force Research Lab. (United States)
David L. Fried
Donald J. Link, Science Applications International Corp. (United States)
Glenn A. Tyler, the Optical Sciences Co. (United States)
William Moretti, the Optical Sciences Co. (United States)
Terry J. Brennan, the Optical Sciences Co. (United States)
Robert Q. Fugate, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 4839:
Adaptive Optical System Technologies II
Peter L. Wizinowich; Domenico Bonaccini, Editor(s)

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